Book-rest



(No Model.)

J. K; BRAMMER.

l BooK REST.

No. 510,323, Patented Dec. 5, 1893.

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I .To all whom it may concern,.-

NITED STATES JAMES K. BRAMMER, OF CROSSTOWN, OHIO.

BOOK- REST.

SPECIFICATION forming part of Letters lPatent No. 510,323, datedDecember 5, 1893.

Application iiled June 13,1893.

.Be it known that I, JAMES K. BRAMMER, a cltizen of the United Stf` tes,residing at Crosstown, in the county of Brown and State of Ohio, haveinvented a new and useful Book; Rest.7 of which thefollowingisaspeeification.

My invention relates to that class of bookrests designed to be securedto tables, chairs, and other articles of furniture, and to support booksin convenient positions for perusal.

The objects of my invention are to produce a restof this kind, the samebeing so constructed as not to mar or impair the furniture to which itis applied; that is longitudinally adjustable so as to be broughta'proper distance from the veyes of the peruser and which may beinclined or disposed at any angle in accordance with the position of theperuser.

Various other objects and advantages of the invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the claims.

Referring to the drawingszF-Figure l is a perspective view of abook-rest embodying my Invention. Fig. 2 is a vertical transversesectional view through the swiveled post, ratchet, and slide-block. Fig.3 isa sectional View through the clamp, its pads, and a p0rtion of theswiveled arm. v

Like numerals of reference indicate like parts in all the igures of thedrawings.

The U-shaped clamp consists of the upper and lower clamping members land 2 respectlvely, said members being adj ustably connected together soas to t over'objects of different thickness. The upper member 1 isprovided at its outer end with a depending tenon 3, the same beingrectangular in crosssection, provided with a threaded bore 4 at itslower end, and at its opposite sides with vertical ribs 5. The lowerclamping member 2 1s provided with a back wall, and the same has formedtherein a central recess or mortise 6 having opposite longitudinalgrooves 7, and theV bottom of said mortise is provided with an opening 8which aligns with the bore 4 of the tenen 3. It will be seen that thetenen will tit the mortise 6, the ribs 3 of said tenen taking into thegrooves 7 at the sides of the mortise, and when in that position thebore 4 and opening 8 align. An adjusting screw Serial No. 477,445. (Nomodel.)

9 is passed upwardly through the opening into the bore Ltof the mortise,the shoulderv of the screw binding against the under side of the lowerclamping member. In order to avoid marring the furniture to which thisclamp may be applied,I preferably locate between the binding faces ofthe clamping members and the furniture, cork or rubber pads 10, whichare preferably let into the said faces of the members. The upper member1 is provided at its center with a boss l1, the same having acentralbore and receivinga cylindrical stud l2 formed on the inner end of anarm 13 whereby the latter is swiveled upon the clamp. The arm 13 isrectangular in cross-section and has its opposite sides or facesprovided with longitudinal grooves 14, the outer ends of the groovesbeing closed by a rectangular stop-plate l5 through which a screw ispassed into the end of the arm. lA sliding block 16 is mounted upon thearm 13, and has its under side recessed as at 17 to fit over the upperside or face of the arm 13, the opposite walls of the recess beingprovided with ribs 18 which engage with the grooves 14 of the arm 13.The block is tapered upon its upper side and is further provided with acircular bore 19. In the bore 19 there is swiveled thelower reducedtenon 20 formed upon the swiveled post2l, and said post terminates atits upper end in a transversely disposed cylindrical head 22, which isprovided with a horizontal bore 25 and is bifurcated. Through the boredbifurcations of this post passes a horizontally disposed cylindrical bar26, the same bearing inthe head and heilig adapted for rocking. The baris flattened at its center or at a point between the bifurcations of thehead and hasl swaged thereon or otherwise secured a ratchet disk 27 thesame being located between the bifurcations of the head i of thestandard 21. Located in a slot 28 formed in one side of the standard 21is a locking pawl 29, the same being pivoted as at 30 between its endswithin the slot and having a spring 3l interposed between its lower endand the bottom of the slot, whereby the upper locking end of the'pawl isheld normally in engagement with the teeth of the disk and henceprevents the rockshaft or bar 26 from moving in one direction. Ahorizon`1 tal rest 32 projects outwardly from the rock shaft, and asupporting frame 33 projects from said rock-shaft at a right angle tothe rest. The supporting frame and rest may be of any desiredconstruction, but in the present instance is formed of reticulated wire,which is preferred. Loosely hung upon the bar of the rest is a T-shapedleaf-holding clamp 35, the same beingl formed of spring wire andprovided with a knob 36 by means of which it may be raised from contactwith the leaves of the book, thereby permitting of a turning of saidleaves.

This completes the construction of the invention, and it will be seentherefrom that I accomplish in a simple and convenient manner theobjects hereinbefore set forth; that the device as a Whole may bccheaply manufactured and sold; may be conveniently applied to variouspieces of furniture; will not mar the same by reason of its presence;and that it is capable of supporting books in an open position at anydistance from the eyes of the pernser or reader convenient to him and atany angle. In order to alter the angle the lower end of the pawl ispressed so as to disengage the upper end thereof from en gagev ment withthe ratchet disk,then by grasping the rest with the other hand it may beraised or lowered to suit the operator. Immediately upon a release ofthe pawl a relooking of the parts will take place.

It will be observed that various changes in the minor details of myinvention will readily suggest themselves to those skilled in this classof devices, and I therefore do not limit the invention to the precisedetails which I have herein shown and described, but hold that I mayvary the same to any extent and degree Within the scope of my inventionWithout departing from the principle or sacrificing any of theadvantages thereof.

Having described my invention, what I claim is l. In a book-rest, thecombination with the book-support, and a swiveled arm, of a clamp forsupporting the arm, said clamp consisting of a pair of clampingsections, one of which is provided at its rear end with a bored tenonhaving ribs, and the other of which with a back wall recessed to receivethe tenon and having grooves to receive the ribs, and an openingaligning with the bore, and a binding-sereT passing through the openingand into the bore, substantially as specified.

2. In a book-rest, the combination with a clamp and a horizontal armswiveled upon the clamp and provided `with opposite longitudinalgrooves, of a block recessed upon its under side and mounted upon thearm and having its side Walls provided with ribs for engaging thegrooves of the arm, and a book support swiveled on the block.substantially as specified.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of tivo witnesses.

JAMES K. BRAMMER.

Witnesses:

BENJ. A. REED, M oLLIE BRAMMER.

